Your model Everpure OW2 uses the EV308132 Everpure 1/2 GPM Flow Control EV308132 The Everpure EV308132 is for use with the following water filter cartridges:
Everpure OW2-Plus
Everpure OW4-Plus
Everpure OW2
The Everpure 1/2 GPM Flow Control EV308132 is used to restrict flow through the above filters. The flow rate of thi